Window construction



Dec. 30, 1969 o, S, WIL I Em 3,486,273

WINDOW CONSTRUCTION Filed Dec. 19, 1967 4 Sheets-Sheet 2 Dec. 30, 1969 o,-s. wn s ETAL 3,486,273

WINDOW CONSTRUCTION Filed Dec. 19, 1967 4 Sheets-Sheet 5 Dec. 30, 1969 o. s. WILLIAMS ETAL 3,486,273

WINDOW CONSTRUCTION Filed Dec. 19, 1967 4 Sheets-Sheet 4 nited States Patent O 3,486,273 WINDOW CONSTRUCTION Oscar Stanley Williams and Robert S. Williams, both of Arlington, Ind. 46104 Filed Dec. 19, 1967, Ser. No. 691,826 lint. Cl. Ed 1/06, 7/10; B63d 27/00 US. Cl. 49389 8 Claims ABSTRACT OF THE DISCLOSURE A cab for enclosing an operator for a combine or other power unit, having windows for visibility to facilitate operation to maintain a tight enclosure and yet providing for opening of the cab when desired, to effect ventilation. A window is slidably and detachably mounted in the frame so as to be tilted or removed, and, when replaced, will maintain a tight closure.

BACKGROUND AND DESCRIPTION The invention relates to improvements in combine cabs of the character used for enclosing the operators area of a self-propelled combine or of other power operated device or machine.

Cabs for this purpose that have been provided heretofore generally have been very expensive, due to the heavy construction thereof, the permanence of installation of the windows and doors, and the necessity for providing expensive air-conditioning systems for adequate ventila tion of the interiors thereof. The utilization of a combine cab that is enclosed requires that it be substantially airtight; Without which a large amount of dust would filter into the cab and make use thereof undesirable.

One object of this invention is to simplify and improve the construction of cabs of this type by providing for tightness of construction especially around the windows thereof, while yet effecting full ventilation within the cab and, if desired, providing for removable windows.

Another object of the invention is to improve the window construction, not only to obtain tightness of the cab, so as to reduce the air leakage around the windows, but also to provide for full ventilation and removability of the windows when desired.

These objects may be accomplished by mounting the window covers on frames that are slidable. The windows are removable from the window frames, as well as slidable with respect thereto, and thus may be adjusted in position to vary the amount of ventilation or removed entirely, when not required.

The construction does not require a permanent hinge, but hinging action is effected through the interconnection of the window and its frame on brackets attached thereto between the window and its guides. Through suitable clips and fastenings, the window may be locked closed or propped open, according to the degree of ventilation needed.

This embodiment of the invention is illustrated in the accompanying drawings, in which:

FIG. 1 is a perspective view of a tractor cab, taken from one side thereof;

FIG. 2 is a similar view from the opposite side;

FIG. 3 is a side elevation of one of the windows, from inside the cab;

FIG. 4 is a perspective thereof, from the outside;

FIG. 5 is a similar view from the inside;

FIG. 6 is a perspective view, showing the window partially removed; and

FIG. 7 is a detail cross section through the window frame on the line 77 in FIG. 3.

The invention is shown as applied to a combine cab. As an example thereof, it is recognized that it may be ice used in connection with many other types of cabs, such as for various types of tractors, fork lift trucks, boats, house trailers, machines of various kinds, etc. Provision is made for effecting a secure and tight enclosure and'for providing ventilation therein.

In the illustrated example, the combine is indicated generally at 1 and has a cab 2 mounted thereon to enclose an operators station containing the controls for the combine 1. The cab 2 preferably should be a self-contained unit that may be applied or removed, as such, to gain access to the controls or for installation on a standard machine, when desired, without the necessity for individually building the parts thereof upon the platform of the machine.

This cab 2 is provided with a windshield 3 in the front thereof, through which visibility may be had for guiding and steering the combine. An access door is indicated at 4 on one side and suitable windows are shown at 5, which may be of various sizes and shapes, according to the position and placement thereof within the frame of the cab 2.

A sheet metal drip gutter 5 extends along each opposite side of the top over the windows and door. This gutter 5' is secured along one edge to a side of the top. By adding standardized sheet metal drip gutters to the upper top edges of our cab sides, we cut costs. The usual practice is to form or mold the top to include these drip edges. Especially with molded tops, this becomes a bothersome and costly problem, which we eliminate.

A portion of the frame is illustrated in the drawings and designated generally at 6 and forms a unitary supporting structure for each respective side of the cab.

One of the windows 5 is illustrated in detail in FIGS. 3 to 6 as an example of this invention and it will be understood that any or all of the windows of the cab may be so provided for effecting the desired ventilation.

In the illustrated embodiment, the frame 6 forming a side of the cab 2 is shaped to form a window opening, as illustrated for example in FIGS. 3 and 5, and designated at 7. Extending upright along opposite sides of the frame 6 within the opening 7 are guide members 8 connected together at their lower ends by a window jamb 9, which is in the same upright plane as the guide members 8. The guide members 8 terminate at their upper ends, spaced from the top of the opening 7.

Extending downwardly from the top edge of the opening 7 is a window jamb 10 which extends preferably throughout the width of the opening, overlapping the upper ends of the guide members 8, but spaced transversely therefrom, thus forming openings 11 between the upper ends of the guide members 8 and the lower edge of the window jamb 10.

The window sash is shown at 12, which may be formed of a suitable frame, generally indicated at 13, having a transparent portion 14 made of a suitable material, such as glass, plastic, or the like, for visibility therethrough, and carried by the frame 13. The frame 13 is shown as formed of a fiat plate or sheet, such as metal or plastic, of suitable thickness to be self-sustaining, and having an opening therein for the transparent material 14. The frame 13 is guided through the opening 11 and confined between the guide members 8 and the window jamb 10.

The frame 13 is provided with clips 15 welded or otherwise secured to the face of this frame in position to be seated upon the upper ends of the guide members 8 when the window sash is in position shown in FIG. 5, so as to form a pivotal connection with the window sash with respect to the frame and yet to permit the window to be withdrawn, as shown in FIG. 6, if desired. Thus, it is possible, upon lifting the window sash 12, to slide it through the openings 11 and thus withdraw it from the window frame for ready removal when not required, as illustrated in FIG. 6.

When it is desired to reduce the amount of ventilation by partially opening the sash, it may be moved to a partially open position on the pivotal supports by propping it open by means of a bail rod 16, as illustrated in FIGS. 4 and 5. This bail rod 16 is pivotally connected at its opposite ends at 17, with opposite sides of the frame 13, so as to swing with respect thereto, and projecting end portions of the bail rod, indicated at 18, are in position to engage in open clips 19 secured to the faces of the guide members 8, as shown in FIGS. 3 and 6, so as to hold the window sash in a partially open position.

The frame 13 of the window sash 12 is also provided with formed locks 20 welded or otherwise secured to the inner faces of the frame 13 and having depending tongues in positions to overlap the window jamb 9 when the sash 12 is closed. These tongues 20 are resilient, normally urging these portions downward into locking engagement with the window jamb 9, but may be lifted by the thumbs so as to release tse window sash when desired. Thus, they will hold the window sash in locked condition until released.

This window may be opened or closed and even removed by using just one hand and without the use of any tools whatever. It may be adjusted according to the amount of ventilation required in the cab and yet, when closed, will maintain an air-tight condition which will require little filtering of air in the cab.

The frame is made of standard, metal tubing. Cutting and production tooling costs are minimized. This frame will be completed with closures for each frame opening. To do this, we have standardized materials and tooling to an unsual extent. Die cut window corner plates, having two straight edges cut to 90, an acute or an obtuse angle, are used. The third edge is curved as required to fit window glass having rounded corners. A standard sized sheet metal strip and a standardized sheet metal angle are also used for minimized costs.

(1) Permanent window type cab construction closures Corner plates are die flanged and connect with sheet metal angle cut to appropriate lengths. This assembly is welded into the cab frame opening.

(2) Removable window type cap construction closures Corner plates are left flat and are connected by sheet metal strip cut to appropriate lengths. The cab frame opening is fitted with welded-in angle: Window retension clips are added to the opening.

(3) Hinged window type cab construction closures Corner plates are left fiat and are joined by strip cut to appropriate lengths. The cab frame opening is fitted with angle cut to appropriate lengths as shown in the drawings. Hinge clips, retension clips, etc., are also added.

(4) Panel closure of remaining openings in cab frames Panels have edges turned for flanges needed for welding panels into the cab frame openings.

Thus we have standardized materials and tooling to an absolute minimum cost. Material wastage is very much reduced on a comparative basis. Fitting this cab design to a specific machine requires really minimized engineering time and tooling cost of special tools.

While the invention has been illustrated and described in one embodiment, it is recognized that variations and changes may be made therein without departing from the spirit of the invention.

We claim:

1. A cab having a window opening therein, a sash for said opening of a size to fit therein, guide members mounted in opposite sides of the Window opening in overlapping relation with adjacent portions of the sash for confining the sash therein, a jamb member extending transversely of the opening at the upper portion of the window at one end of the guide members, said jamb member being spaced laterally from the adjacent ends of the guide members and having the sash bodily slidable through said space and pivoted therein for pivotally and slidably connecting the sash with the guide members, brackets on the sash in positions to engage the upper end portions of the guides, and means for locking the sash in closed position in the opening.

2. A cab according to claim 1, including a supporting frame said frame including sections each comprising metal tubing extending to and along the opening in the window with closures in the ends of the tubing at the window opening.

3. A cab according to claim 1, wherein the sash has a frame slidable upon the guide members, and brackets carried by the sash frame in position for abutment with the ends of the guide members forming hinged connections therewith.

4. A cab according to claim 3, wherein the sash is slidaable lengthwise away from the guide members and bodily removable from the window opening.

5. A cab according to claim 1, wherein the window opening has the window jamb member overlapping said guide members in the direction of the length thereof.

6. A cab according to claim 1, wherein the locking means includes a rod pivotally connected at opposite ends with the sash and having intermediate portions in positions to engage the cab at the window opening to hold the sash in an open position.

7. A cab having an upright window opening therein with a surrounding frame, a sash for said opening of a size to fit therein, said sash having a surrounding frame supporting a sheet of material, upright guide members extending along opposite sides of the frame with their upper ends spaced downwardly from the top of the opening, a jamb member extending along the top of the opening and extending downwardly in overlapping relation with the upper ends of the guide members and laterally spaced therefrom for bodily movement of the sash therebetween. and means for supporting the sash on the guide members.

8. A cab according to claim 7, including means for anchoring the sash open, and means for locking the sash closed.

References Cited UNITED STATES PATENTS 1,148,764 8/1915 Faires 49261 1,662,453 3/1928 Boeck 49l53 1,773,730 8/1930 Hankins et al 49152 1,841,124 1/1932 Higgins 49-261 2,638,640 5/1953 Ballard 49-261 2,392,678 1/1946 Loetscher 4926l 2,799,890 7/1957 Stavich 49463 2,997,333 8/1961 Kauffman et a1. 29628 LEO FRIAGLIA, Primary Examiner J. A. PEKAR, Assistant Examiner US. Cl. X.R. 29628 

